another interesting VoIP solution for the iPhone.
Viber: Make Free VoIP Calls on iPhone Over 3G/WiFi | iPhone in Canada Blog – Canada’s #1 iPhone Resource
http://www.iphoneincanada.ca/reviews/viber-make-free-voip-calls-on-iphone-over-3gwifi/
http://www.iphoneincanada.ca/reviews/viber-make-free-voip-calls-on-iphone-over-3gwifi/